[PATCH 3/3] gold: Handle DW_AT_high_pc as offset from DW_AT_low_pc in gdb-index.cc.

[Cary Coutant]

>   off_t low_pc = die->ref_attribute(elfcpp::DW_AT_low_pc, &shndx);
> -  off_t high_pc = die->ref_attribute(elfcpp::DW_AT_high_pc, &shndx2);
> -  if ((low_pc != 0 || high_pc != 0) && low_pc != -1 && high_pc != -1)
> +  off_t high_pc = die->address_attribute(elfcpp::DW_AT_high_pc, &shndx2);
> +  if (high_pc == -1)
> +    {
> +      high_pc = die->uint_attribute(elfcpp::DW_AT_high_pc);
> +      high_pc += low_pc;
> +      shndx2 = shndx;
> +    }
> +  if ((low_pc != 0 || high_pc != 0) && low_pc != -1)
>     {
>       if (shndx != shndx2)
>         {

You should change the first call for low_pc to use
die->address_attribute() as well.

The rest looks good to me. (I can't approve, though.)

Thanks!

-cary